http://www.crickweb.co.uk/ is a really helpful website from the UK market. K to 2 teachers roughly corresponds to Early Years and Key Stage 1. Plenty of simple, free, useful activities. Edwin.
The TES iboardis another really useful UK website. Lots of activities which can be used for teaching by the teacher then given to the children to complete. Edwin.
Paid/subscription websites
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http://www.busythings.co.uk/ Is a FANTASTIC website for Early Years. It's pitched at the UK schools market, and specifically at Pre Kindy and Kindy age groups, but I don't care - I used it as often as possible when teaching 5 and 6 year olds and they loved it! If you can get your school to subscribe to it - do! Edwin.
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